More than for purchasing rare books, this page is useful to check the value and/or obtain additional data or hints on the entirety of the books handled. The links point exclusively to the Astronomy sections of the booksellers' catalogues.

Booksellers' catalogues

• Antiquariat & Buchhandlung Gerhard Renner
• Asherbooks
• B. & L. Rootenberg Rare Books
• Bibliopoly
• Murray Hudson (also maps and globes)
• International League of Antiquarian Book Sellers